Subject: Administrative, (Update #1): S-NPP/GCOM-W1 Transition to new
Update #1:  As of February 10, 2017, the latest information on an
upcoming system transition is provided: On February 8, 2017 the
new SNPP
Ground Data Systems completed an operational readiness review.
One last
readiness review is scheduled to occur in late February for the entire
SNPP data operations systems.  Based on the current schedule, a
transition to the new S-NPP/GCOM data processing/distribution
systems to
operations is anticipated to occur no earlier than March 1, 2017 - the
exact date and timing of that transition will be provided at the end of
February.

Topic: S-NPP/GCOM Transition to new operational data
processing/distribution system (PDA) no earlier than March 1, 2017

Date/Time Issued: February 10, 2017  1400 UTC

Product(s) or Data Impacted: All S-NPP/GCOM pass through and NDE
products

Date/Time of Initial Impact: no earlier than Wednesday March 1, 2017
  1200 UTC

Date/Time of Expected End: no earlier than Wednesday March 1,
2017  1200
UTC

Length of Outage: N/A

Details/Specifics of Change: NESDIS is preparing to transition the new
S-NPP/GCOM data processing/distribution systems to operations no
earlier
than  March 1, 2017 - the exact date and timing of that transition will
be provided in mid-February.

S-NPP/GCOM users obtaining data from the current operational NDE system
will operationally transition to the new NESDIS enterprise Product,
Distribution and Access (PDA) dissemination system for the existing
products they receive today.  As a notice to our users, there are no
expected changes for those receiving NESDIS Unique Products (NUPs);
however, users receiving HDF5 pass-through data will see filename
convention changes and the HDF5 data will be internally compressed
using
Zlib lossless compression. Current NDE pull users need to modify their
pull script to accommodate the file name change for IDPS pass-through
products.

An example of the existing file-naming convention with one S-NPP/JPSS
Data Product packaged in a single HDF5 file is:
SVM01_npp_d20130117_t2059265_e2100506_b06349_c20130118032130407525_noaa_ops.h5

An example of the new file-naming convention with one S-NPP/JPSS Data
Product packaged in a single HDF5 file is:
SVM01_npp_d20130117_t2059265_e2100506_b06349_c20130118032130407525_noac_ops.h5
An additional identifier is present to indicate file compression.

This general notice of intent to switch operations to the new system
called PDA only affects current users on the existing operational NDE
system.  Details on the exact date and timing of this transition
will be
provided in a few weeks. Other product transition to PDA will take
place
at a later date, with subsequent notification.

Web Site(s) for applicable information:
https://jointmission.gsfc.nasa.gov/sciencedocs/2016-10/474-00001-01_JPSS-CDFCB-X-Vol-I_0200C.pdf